He made an instrument to know
If the moon shine at full or no;
That would, as soon as e'er she shone straight,
Whether 'twere day or night demonstrate;
Tell what her d'ameter to an inch is,
And prove that she's not made of green cheese.

Quoth Sidrophel, If you suppose,
Sir Knight, that I am one of those,
I might suspect, and take th' alarm,
You bus'ness is but to inform;
But if it be, 'tis ne'er the near,
You have a wrong sow by the ear.